All names: GALEX J193049.4+542127, O11J193049+542128, Gaia DR3 2138460024791284352, 2MASS J19304938+5421273, Gaia DR2 2138460024791284352, TIC 287262768
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 30 49.00 | 19 30 49.39 (0.04) | ||
| Declination | 54 21 28.00 | 54 21 27.46 (0.04) | ||
| Spectral type | sd | |||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.46 (0.06) | 0.48 (0.04) | |
| Distance | [pc] | 2172.97 (277) | 2067.82 (179) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.923 (0.1) | -5.756 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.474 (0.1) | -5.194 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.62 (0.1) | 16.62 (0.1) | ||
| H magnitude | 16.28 | |||
| K magnitude | 16.57 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.64 (0.001) | 16.61 (0.003) | ||
| BP magnitude | 16.50 (0.007) | |||
| RP magnitude | 16.72 (0.006) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | 17.35 (0.04) | |||
| E(B-V) | 0.055 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.